body {
  margin: 0;
  padding: 0;
  background-color: #f1f1f1;

  * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
      font-family: "微软雅黑","Times New Roman",Georgia,Serif;
  }
}

input {
  outline: none;
  border: none;
}

.float-left {
  float: left;
}
.float-right {
  float: right;
}
.clear-fix:after {
  display: table;
  content: '';
  clear: both;
}

a {
  text-decoration:none
}
